Here for your review is a 3.23 Ratio Ring & Pinion Gear Set for the 2014 Thru 2018 GM 12 Bolt 9.5" Rear used in Chevrolet Silverado 1500. genuine real deal gear set from General Motors. GM list price currently is $502.18. We have a genuine set right here for hundreds less. Great deal if you need the real deal. Thanks for looking and as always, HAPPY MOTORING!